Require explicit selection of traits for LazyInstance

extensions/browser/api/bluetooth_low_energy/bluetooth_low_energy_notify_session.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/browser/api/bluetooth_low_energy/bluetooth_low_energy_notify_session.h"
 
 #include "base/lazy_instance.h"
 
 namespace extensions {
 
 static base::LazyInstance<BrowserContextKeyedAPIFactory<
-    ApiResourceManager<BluetoothLowEnergyNotifySession>>>
+    ApiResourceManager<BluetoothLowEnergyNotifySession>>>::DestructorAtExit
     g_factory = LAZY_INSTANCE_INITIALIZER;
 
 template <>
 BrowserContextKeyedAPIFactory<
     ApiResourceManager<BluetoothLowEnergyNotifySession>>*
 ApiResourceManager<BluetoothLowEnergyNotifySession>::GetFactoryInstance() {
   return g_factory.Pointer();
 }
 
 BluetoothLowEnergyNotifySession::BluetoothLowEnergyNotifySession(
     bool persistent,
     const std::string& owner_extension_id,
     std::unique_ptr<device::BluetoothGattNotifySession> session)
     : ApiResource(owner_extension_id),
       persistent_(persistent),
       session_(session.release()) {}
 
 BluetoothLowEnergyNotifySession::~BluetoothLowEnergyNotifySession() {}
 
 device::BluetoothGattNotifySession*
 BluetoothLowEnergyNotifySession::GetSession() const {
   return session_.get();
 }
 
 bool BluetoothLowEnergyNotifySession::IsPersistent() const {
   return persistent_;
 }
 
 }  // namespace extensions